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| | <StructureSection load='5ay9' size='340' side='right'caption='[[5ay9]], [[Resolution|resolution]] 2.50Å' scene=''> | | <StructureSection load='5ay9' size='340' side='right'caption='[[5ay9]], [[Resolution|resolution]] 2.50Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[5ay9]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Ruma7 Ruma7]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5AY9 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5AY9 FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[5ay9]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Ruminococcus_albus_7_=_DSM_20455 Ruminococcus albus 7 = DSM 20455]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5AY9 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5AY9 FirstGlance]. <br> |
| - | </td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[5aye|5aye]], [[5ayd|5ayd]], [[5ayc|5ayc]]</td></tr> | + | </td></tr><tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=5ay9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5ay9 OCA], [https://pdbe.org/5ay9 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5ay9 RCSB], [https://www.ebi.ac.uk/pdbsum/5ay9 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5ay9 ProSAT]</span></td></tr> |
| - | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">Rumal_0852 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=697329 RUMA7])</td></tr>
| + | |
| - | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/4-O-beta-D-mannosyl-D-glucose_phosphorylase 4-O-beta-D-mannosyl-D-glucose phosphorylase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.4.1.281 2.4.1.281] </span></td></tr>
| + | |
| - | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5ay9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5ay9 OCA], [http://pdbe.org/5ay9 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5ay9 RCSB], [http://www.ebi.ac.uk/pdbsum/5ay9 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5ay9 ProSAT]</span></td></tr> | + | |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[http://www.uniprot.org/uniprot/MGP_RUMA7 MGP_RUMA7]] Converts 4-O-beta-D-mannopyranosyl-D-glucopyranose (Man-Glc) to mannose 1-phosphate (Man1P) and glucose. Involved in a mannan catabolic pathway which feeds into glycolysis.[HAMAP-Rule:MF_00928]<ref>PMID:23093406</ref> | + | [https://www.uniprot.org/uniprot/MGP_RUMA7 MGP_RUMA7] Converts 4-O-beta-D-mannopyranosyl-D-glucopyranose (Man-Glc) to mannose 1-phosphate (Man1P) and glucose. Involved in a mannan catabolic pathway which feeds into glycolysis.[HAMAP-Rule:MF_00928]<ref>PMID:23093406</ref> |
| | <div style="background-color:#fffaf0;"> | | <div style="background-color:#fffaf0;"> |
| | == Publication Abstract from PubMed == | | == Publication Abstract from PubMed == |
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| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: 4-O-beta-D-mannosyl-D-glucose phosphorylase]] | |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Ruma7]] | + | [[Category: Ruminococcus albus 7 = DSM 20455]] |
| - | [[Category: Kato, K]] | + | [[Category: Kato K]] |
| - | [[Category: Saburi, W]] | + | [[Category: Saburi W]] |
| - | [[Category: Yao, M]] | + | [[Category: Yao M]] |
| - | [[Category: Ye, Y]] | + | [[Category: Ye Y]] |
| - | [[Category: Glycoside hydrolase family 130]]
| + | |
| - | [[Category: Transferase]]
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| Structural highlights
Function
MGP_RUMA7 Converts 4-O-beta-D-mannopyranosyl-D-glucopyranose (Man-Glc) to mannose 1-phosphate (Man1P) and glucose. Involved in a mannan catabolic pathway which feeds into glycolysis.[HAMAP-Rule:MF_00928][1]
Publication Abstract from PubMed
In Ruminococcus albus, 4-O-beta-d-mannosyl-d-glucose phosphorylase (RaMP1) and beta-(1,4)-mannooligosaccharide phosphorylase (RaMP2) belong to two subfamilies of glycoside hydrolase family 130. The two enzymes phosphorolyze beta-mannosidic linkages at the nonreducing ends of their substrates, and have substantially diverse substrate specificity. The differences in their mechanism of substrate binding have not yet been fully clarified. In the present study, we report the crystal structures of RaMP1 with/without 4-O-beta-d-mannosyl-d-glucose and RaMP2 with/without beta-(1-->4)-mannobiose. The structures of the two enzymes differ at the +1 subsite of the substrate-binding pocket. Three loops are proposed to determine the different substrate specificities. One of these loops is contributed from the adjacent molecule of the oligomer structure. In RaMP1, His245 of loop 3 forms a hydrogen-bond network with the substrate through a water molecule, and is indispensible for substrate binding.
Structural insights into the difference in substrate recognition of two mannoside phosphorylases from two GH130 subfamilies.,Ye Y, Saburi W, Odaka R, Kato K, Sakurai N, Komoda K, Nishimoto M, Kitaoka M, Mori H, Yao M FEBS Lett. 2016 Mar;590(6):828-37. doi: 10.1002/1873-3468.12105. Epub 2016 Mar 4. PMID:26913570[2]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Kawahara R, Saburi W, Odaka R, Taguchi H, Ito S, Mori H, Matsui H. Metabolic mechanism of mannan in a ruminal bacterium, Ruminococcus albus, involving two mannoside phosphorylases and cellobiose 2-epimerase: discovery of a new carbohydrate phosphorylase, beta-1,4-mannooligosaccharide phosphorylase. J Biol Chem. 2012 Dec 7;287(50):42389-99. doi: 10.1074/jbc.M112.390336. Epub 2012, Oct 23. PMID:23093406 doi:http://dx.doi.org/10.1074/jbc.M112.390336
- ↑ Ye Y, Saburi W, Odaka R, Kato K, Sakurai N, Komoda K, Nishimoto M, Kitaoka M, Mori H, Yao M. Structural insights into the difference in substrate recognition of two mannoside phosphorylases from two GH130 subfamilies. FEBS Lett. 2016 Mar;590(6):828-37. doi: 10.1002/1873-3468.12105. Epub 2016 Mar 4. PMID:26913570 doi:http://dx.doi.org/10.1002/1873-3468.12105
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